托比是个十二岁小男孩,母亲过世后,与继父切特和小狗拉奇一起生活.姨妈薇拉丽为夺取财产,拼命与切特争夺托比的监护权,拉奇在追逐小偷时死于车祸,装有托比母亲遗嘱的文件箱也被盗走,然而正在托比痛不欲生之时,拉奇又如幽灵般出现了,在幽灵狗拉奇的协助下,托比一面为父亲物色女友,一面开始寻找文件箱的下落……...

Doug Baily's father is weird, but a strange machine in the garage now makes him invisible too. Its a roller coaster ride of fun and hijinks as Doug tries to turn his invisible dad back to normal again...